Civil construction refers to the building and maintenance of infrastructure that is essential for modern society. This includes things like roads, bridges, tunnels, dams, airports, sewage systems, water treatment plants, and other large-scale projects that are designed to improve the quality of life in a community or region. Civil construction companies work closely with government agencies, municipalities, and private clients to plan, design, and execute these types of projects. The phrase "civil construction" is often used interchangeably with terms like "infrastructure development," "public works," or "heavy civil engineering."